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Fill flash using SB800

PostPosted: Fri Apr 29, 2005 8:20 pm
by skylark
Hi all, I've just joined but have been a very interested onlooker for a little while.

I am doing a uni assignment where we are required to shoot a portrait in sunlight using a Metz flash (very specific!) for fill. Due to access limitations to the Metz's, I'm wanting to use my SB800, but need to satisfy the assignment requirements - essentially using manual settings and stopping the flash down until the exposure looks right. I have made a couple of attempts but can't seem to get it right on the manual mode. I only seem to have success when I stop it down in TTL mode or stop the exposure down, but i dont think this fulfils the brief.

If anybody could give some tips I'd be very grateful!

PostPosted: Fri Apr 29, 2005 10:26 pm
by Matt. K
Simple
Take a light reading of your subject and set your camera. Be sure the shutter speed is not higher then the synch speed for that paricular camera. Now...if the f/stop is 5.6 then set f/4 on the gun. If the f/stop is f/8 then fet f/5.6 on the gun. If the f/stop is f/11 then set f/8 on the gun. Etc etc. Set the guns f/stop to 1 stop larger then that set on the camera. Not a bad idea to take a few pics with the f/stop set to 2 stops larger on the gun as a form of insurence or bracketing. Hollar if you want more info and good luck.

PostPosted: Fri Apr 29, 2005 11:03 pm
by Onyx
G'day skylark welcome to the forums. This assignment wouldn't happen to be UoQ photograsphy degree one would it?

PostPosted: Fri Apr 29, 2005 11:25 pm
by Matt. K
Onyx
You grow more beautiful everyday. 8) 8) 8)

PostPosted: Sun May 01, 2005 12:51 pm
by skylark
Thanks for the tip Matt K. I'm mostly having difficulty with the functioning of the SB800, I stop it down but with very little noticeable effect. It seems to have a mind of its own! So are you saying set the flash on manual mode and stop it down? Or would it be better in TTL mode? Will try again today anyway, and see how I go.

Very close Onyx, I'm doing my degree at Queensland College of Art...have just started. It's great...very challenging!

PostPosted: Sun May 01, 2005 2:08 pm
by big pix
Also set your guide number or iso on the flash to match the camera iso

cheers

bp

PostPosted: Sun May 01, 2005 4:14 pm
by the foto fanatic
skylark wrote:Thanks for the tip Matt K. I'm mostly having difficulty with the functioning of the SB800, I stop it down but with very little noticeable effect. It seems to have a mind of its own! So are you saying set the flash on manual mode and stop it down? Or would it be better in TTL mode? Will try again today anyway, and see how I go.



It's better to stop down in manual mode. If you keep the camera in TTL, then the camera and the flash decide the settings for you, and it's easy to have the camera working against the flash settings you have chosen.
If you have a hand-held light meter, you can use that to make sure you have the right camera settings.

PostPosted: Sun May 01, 2005 4:26 pm
by redline
correct me if iam wrong but you should be able to dial down the iso on you flash to be 1 or 2 stops less than you expourse.

have a look at this
http://www.popphoto.com/assets/download/821200311318.pdf

PostPosted: Sun May 01, 2005 6:23 pm
by PiroStitch
Great thread!! :D

I tried to do what Matt K suggested, but I had it backwards, and photos still turned out fine :D The photos had a nice warm ambient atmosphere and using the fill flash lighten up the foreground created a nice balanced photo :) Thanks Matt.

PostPosted: Sun May 01, 2005 8:37 pm
by Matt. K
You had it backwards? Got me confused there...can you be more specific?

PostPosted: Sun May 01, 2005 10:50 pm
by PiroStitch
Now...if the f/stop is 5.6 then set f/4 on the gun


I had a larger f/stop on the gun than on the camera (ie. f5 on the camera and f5.6) :) So I remembered it backwards.

Lol, no I didn't have the falsh on backwards to blind myself each time I took the photo :)

PostPosted: Mon May 02, 2005 6:41 pm
by Matt. K
Backwards is OK for self portraits. :lol: :lol: :lol:

PostPosted: Mon May 02, 2005 8:29 pm
by tsanglabs
Thanks for the link redline, very helpfull.